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地球科学进展  2005, Vol. 20 Issue (3): 292-297    DOI: 10.11867/j.issn.1001-8166.2005.03.0292
研究论文     
中国西南岩石高边坡的主要特征及其演化
黄润秋
成都理工大学地质灾害防治与地质环境保护国家专业实验室,四川 成都 610059
MAIN CHARACTERISTICS OF HIGN ROCK SLOPES IN SOUTHWESTERN CHINA AND THEIR DYNAMIC EVOLUTION
HUANG Runqiu
National Laboratory of Geohazards Prevention, Chengdu University and Technology, Chengdu 610059, China
 全文: PDF(229 KB)  
摘要:

岩石高边坡是山区工程建设的主要地质环境和工程承载体,尤其是在我国西南地区,高边坡问题几乎成了重大工程建设的首要工程地质和岩土工程问题。结合西南地区地质环境的特点,分析和总结了该地区岩石高边坡发育的主要特征,认为边坡高陡、地应力量级高、具有复杂的变形历史构成了这一地区高边坡有别于一般的特殊性。提出了描述工程高边坡环境的超高系数的概念、区域高地应力环境的形成机理、河谷高边坡应力场特征和发育模式。从河谷发育的动力学过程出发,提出了自然河谷高边坡发育的三阶段理论,即表生改造、时效变形和失稳破坏。

关键词: 中国西南岩石高边坡应力场模式变形破坏演化    
Abstract:

High rock slopes are a kind of very common geological bodies to be being the environment or bearing layers of engineering structures in southwestern China. They show some distinguished characteristics being different from general rock slopes because of the special geological background in this area. According to the data from a lot of field investigation, they can be characterized as super height, high geostress and complicated deformation and failure evolution process. The author gives an index called as over high ratio to describe the environment effect from the slope height. A theoretical geostress distribution model in deep valley is established, which reveals the “hump” pattern of geostress in high rock slopes. From the view of dynamic mechanism, a three-stage model is suggested to describe the dynamic evolution process such as epigenetic recreation, time-dependent deformation and failure. Furthermore, the author gives out the transferring conditions of different stages and basic laws of vertical classification of dynamic process development in deep valleys.

Key words: Southwestern China    High rock slope    Geo-stress distribution model    Deformation and failure evolution
收稿日期: 2003-10-29 出版日期: 2005-03-25
:  P642.2  
基金资助:

国家自然科学基金项目“西部生态与环境”重大研究计划项目“中国西部物碳地质环境条件形成机理及其工程环境效应研究”(编号:90102002)资助

作者简介: 黄润秋(1963-),男,湖南长沙人,教授,主要从事地质工程、岩土工程教学与科研工作 E-mail:hrq@cdut.edu.cn
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引用本文:

黄润秋. 中国西南岩石高边坡的主要特征及其演化[J]. 地球科学进展, 2005, 20(3): 292-297.

HUANG Runqiu. MAIN CHARACTERISTICS OF HIGN ROCK SLOPES IN SOUTHWESTERN CHINA AND THEIR DYNAMIC EVOLUTION. Advances in Earth Science, 2005, 20(3): 292-297.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2005.03.0292        http://www.adearth.ac.cn/CN/Y2005/V20/I3/292

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